/***************************************************************************
 *   Copyright (C) 2007 by Gaetano Mendola  *
 *   mendola@gmail.com   *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#ifndef EVENTDISPATCHER_H
#define EVENTDISPATCHER_H

#include <map>
#include <set>
#include "event.h"

/**
	@author Gaetano Mendola <mendola@gmail.com>
*/

namespace Events {

//Forward Declarations
class EventSink;

class EventDispatcher {
public:
    static EventDispatcher& instance();

    void subscribe(Event::TYPE anEvent, EventSink* aSink);
    void unsubscribe(Event::TYPE anEvent, EventSink* aSink);
    void unsubscribe(EventSink* aSink);

    void notify(const Event* anEvent);


private:
    EventDispatcher();
    ~EventDispatcher();

    //Disabled methods
    EventDispatcher(const EventDispatcher&);
    EventDispatcher& operator=(const EventDispatcher&);

    typedef std::set<EventSink*> TheSinksSet;
    typedef std::map<Event::TYPE, TheSinksSet > TheEventSinkMap;

    TheEventSinkMap theSinks;

}; //class EventDispatcher

} //namespacec Events
#endif
